Added new enum to enumerate the different face directions.

opm/parser/eclipse/EclipseState/Grid/FaceDir.cpp

@@ -0,0 +1,49 @@
+/*
+  Copyright 2014 Statoil ASA.
+
+  This file is part of the Open Porous Media project (OPM).
+
+  OPM is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  OPM is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdexcept>
+
+#include <opm/parser/eclipse/EclipseState/Grid/FaceDir.hpp>
+
+
+
+namespace Opm {
+
+    namespace FaceDir {
+        
+        DirEnum FromString(const std::string& stringValue) {
+            if ((stringValue == "X") || (stringValue == "I"))
+                return XPlus;
+            if ((stringValue == "X-") || (stringValue == "I-"))
+                return XMinus;
+
+            if ((stringValue == "Y") || (stringValue == "J"))
+                return YPlus;
+            if ((stringValue == "Y-") || (stringValue == "J-"))
+                return YMinus;
+
+            if ((stringValue == "Z") || (stringValue == "K"))
+                return ZPlus;
+            if ((stringValue == "Z-") || (stringValue == "K-"))
+                return ZMinus;
+            
+            throw std::invalid_argument("The string value" + stringValue + " could not be converted to a FaceDir enum value");
+        }
+    }
+}